Advanced reverse crunch

Only targets the abs . The crunch doesn’t engage the obliques or other core muscles, so it may not be the best exercise if you’re looking to strengthen your entire core.

To do a standard crunch, begin by lying on your back with your knees bent and your feet on the ground. Slowly lift your shoulders off the ground, tucking your arms behind your head.

Provided your workout regimen includes enough cardio exercise and strength-training exercises such as crunches, you’re likely to experience a shrinking waist, not a growing one . Crunches are a simple way to strengthen your abdominal muscles; within reason, they’ll tighten the area, not increase your waist size.